Massage roller



FIG. 1 is a perspective view of a massage roller, showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a front elevational view thereof; and,

FIG. 7 is a rear elevational view thereof.

The broken lines shown in the drawings are for the purpose of illustrating portions of the massage roller, which form no part of the claimed design. 

CLAIM The ornamental design for a massage roller, as shown and described. 